Directions:
a) list and define all vocabulary from the chapter
b) type at least 4 sample problems with step-by-step directions of how to solve the problem; list the correct answers (if your chapter doesn't have math, there are still problems and concepts we learned.)
c) link at least 3 websites for additional resources to help with studying
d) develop your own LEQ questions for the section - what did you think were the key points we learned?
e) Once your page is done, visit 4 other chapters and answer their LEQ's. (This can be done on a separate piece of paper.)
A.) Vocabulary
-Heterogeneous Mixture- Mixture with one or more visible boundaries between components.
-Homogeneous Mixture- Mixture with no visible boundaries because the components are mixed as individual atoms, ions, and molecules.
-Solution- A homogeneous mixture.
-Mixture- A substance that is composed of multiple other substances, that contain their own properties.
-Pure Substance- A sample of matter, either an element or compound, that consists of only one component, with definite chemical and physical properties, and a definite composition.
-Element- The simplest principles of a subject of study. Sole substances located on Periodic Table.
-Compound- A substance made of a number of elements, created through chemical reactions. Synthesized in fixed ratios.
-Exothermic- Characterized by or formed with evolution of heat.
-Endothermic- Characterized b or formed with absorption of heat.
-Physical Property- A property that can be measured without changing the chemical composition of a substance.
-Chemical Property- A property that can be measured with the changing of the chemical composition of a substance. These properties are seen when one substance is reacting with another substance.
-Physical Change- A change in which the substance changes physical states, or other physical properties, but does not change its chemical composition.
-Chemical Change- A change that creates new substances through chemical reactions between two or more substances.
-Colloid-substance that consists of particle dispersed throughout another substance which are too small for resolution, incapable of passing through semipermeable. -Suspension- Solid particles suspended in liquid. -Intensive Property- Properties that do not depend on the amount of substance present. Ex.) color, boiling point, hardness, temperature
-Extensive Property- Properties that do depend on the amount of substance present. Ex.) pressure, mass
-Evaporation- An operation that uses heat and vacuum to remove a material from a source and deposit it on a surface. The deposition step of an evaporation operation is condensation.
-Distillation- The evaporation and subsequent collection of a liquid as a means of purification.
-Filtration- Process of passing a liquid or gas, such as air, through a filter in order to remove solid particles. -Chromatography- The technique of separating and analyzing the components of a mixture of liquids or gases by selective absorption. -Charcoal Filtration- Type of filtration using charcoal to remove particles.
-Centrifuge- An apparatus consisting essentially of a compartment spun about a central axis to separate contained materials of different specific gravities. -Vaporization- The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole o liquid at its boiling point with no change in temperature and usually expressed as ion kJ/mol.
-Condensation- A Chemical reaction in which water or another simple substance is released by the combination of two or more molecules. -Sublimation- The process of changing from a solid to a gas without passing through an intermediate liquid phase. -Deposition- The tendency of something to act in a certain manner under given circumstances, the way it reacts. -Freezing- Changing to a solid from lack of heat. -Melting- Changing to a liquid from the addition of heat.
B.) Sample Problems
1. Is a substance's boiling point a physical property or chemical property?
2. What type of solution is saltwater?
3. How would you separate oil from water in a lab setting?
4. Is iron rusting a chemical or physical change?
1. Physical Property
2. Homogeneous
3. Centrifuge, then vacuum the oil from the surface
4. Chemical Change
1. How can a substance be determined as a compound, mixture, or element?
2. What are the types of mixtures, and their properties?
3. How can you separate various substances in a lab?
4. How can you tell what is a chemical and physical property, and a chemical and physical change?
a) list and define all vocabulary from the chapter
b) type at least 4 sample problems with step-by-step directions of how to solve the problem; list the correct answers (if your chapter doesn't have math, there are still problems and concepts we learned.)
c) link at least 3 websites for additional resources to help with studying
d) develop your own LEQ questions for the section - what did you think were the key points we learned?
e) Once your page is done, visit 4 other chapters and answer their LEQ's. (This can be done on a separate piece of paper.)
A.) Vocabulary
-Heterogeneous Mixture- Mixture with one or more visible boundaries between components.-Homogeneous Mixture- Mixture with no visible boundaries because the components are mixed as individual atoms, ions, and molecules.
-Solution- A homogeneous mixture.
-Mixture- A substance that is composed of multiple other substances, that contain their own properties.
-Pure Substance- A sample of matter, either an element or compound, that consists of only one component, with definite chemical and physical properties, and a definite composition.
-Element- The simplest principles of a subject of study. Sole substances located on Periodic Table.
-Compound- A substance made of a number of elements, created through chemical reactions. Synthesized in fixed ratios.
-Exothermic- Characterized by or formed with evolution of heat.
-Endothermic- Characterized b or formed with absorption of heat.
-Physical Property- A property that can be measured without changing the chemical composition of a substance.
-Chemical Property- A property that can be measured with the changing of the chemical composition of a substance. These properties are seen when one substance is reacting with another substance.
-Physical Change- A change in which the substance changes physical states, or other physical properties, but does not change its chemical composition.
-Chemical Change- A change that creates new substances through chemical reactions between two or more substances.
-Colloid-substance that consists of particle dispersed throughout another substance which are too small for resolution, incapable of passing through semipermeable.
-Suspension- Solid particles suspended in liquid.
-Intensive Property- Properties that do not depend on the amount of substance present. Ex.) color, boiling point, hardness, temperature
-Extensive Property- Properties that do depend on the amount of substance present. Ex.) pressure, mass
-Evaporation- An operation that uses heat and vacuum to remove a material from a source and deposit it on a surface. The deposition step of an evaporation operation is condensation.
-Distillation- The evaporation and subsequent collection of a liquid as a means of purification.
-Filtration- Process of passing a liquid or gas, such as air, through a filter in order to remove solid particles.
-Chromatography- The technique of separating and analyzing the components of a mixture of liquids or gases by selective absorption.
-Charcoal Filtration- Type of filtration using charcoal to remove particles.
-Centrifuge- An apparatus consisting essentially of a compartment spun about a central axis to separate contained materials of different specific gravities.
-Vaporization- The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole o liquid at its boiling point with no change in temperature and usually expressed as ion kJ/mol.
-Condensation- A Chemical reaction in which water or another simple substance is released by the combination of two or more molecules.
-Sublimation- The process of changing from a solid to a gas without passing through an intermediate liquid phase.
-Deposition- The tendency of something to act in a certain manner under given circumstances, the way it reacts.
-Freezing- Changing to a solid from lack of heat.
-Melting- Changing to a liquid from the addition of heat.
B.) Sample Problems
1. Is a substance's boiling point a physical property or chemical property?2. What type of solution is saltwater?
3. How would you separate oil from water in a lab setting?
4. Is iron rusting a chemical or physical change?
1. Physical Property
2. Homogeneous
3. Centrifuge, then vacuum the oil from the surface
4. Chemical Change
C.) Website Links
-http://www.iun.edu/~cpanhd/C101webnotes/matter-and-energy/properties.html-http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/Physical_Chemical/PhysicalProperties.htm
-http://www.chem4kids.com/files/matter_solution.html
-http://www.fossweb.com/modules3-6/MixturesandSolutions/index.html
-http://library.thinkquest.org/11430/research/techniques.htm
D.) LEQs
1. How can a substance be determined as a compound, mixture, or element?2. What are the types of mixtures, and their properties?
3. How can you separate various substances in a lab?
4. How can you tell what is a chemical and physical property, and a chemical and physical change?